Discover more about dolphins clicking in this interactive graphic. When one of Earth’s smartest creatures vocalizes, it fuels a heated debate among scientists: Are dolphins actually speaking a complex language?

Interesting Trivia - how long does that animal live? What is the average lifespan of a wolf? What about a woodpecker? This infographic looks at the lifespan of different species and how long they live.

Creatures of the class Chondrichthyes, Art print of an illustration by Kelsey Oseid. This poster chronicles 31 amazing sharks, rays, and chimaeras from the taxonomic class Chondrichthyes. Printed in Minneapolis on acid